package com.kun.config.druid;
import java.sql.SQLException;
 
import javax.sql.DataSource;
 
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
 
import com.alibaba.druid.pool.DruidDataSource;

/**
 * @description: master数据源 
 *   @Primary表示这里定义的DataSource将覆盖其他来源的DataSource。
 * @author: KM
 * 2018年3月15日
 */
@Configuration
public class MasterDruidDBConfig {
 
    @Value("${master.datasource.url}")
    private String dbUrl;
 
    @Value("${master.datasource.username}")
    private String username;
 
    @Value("${master.datasource.password}")
    private String password;
 
    @Value("${master.datasource.driver-class-name}")
    private String driverClassName;
 
    @Value("${master.datasource.initialSize}")
    private int initialSize;
 
    @Value("${master.datasource.minIdle}")
    private int minIdle;
 
    @Value("${master.datasource.maxActive}")
    private int maxActive;
 
    @Value("${master.datasource.maxWait}")
    private int maxWait;
 
    @Value("${master.datasource.timeBetweenEvictionRunsMillis}")
    private int timeBetweenEvictionRunsMillis;
 
    @Value("${master.datasource.minEvictableIdleTimeMillis}")
    private int minEvictableIdleTimeMillis;
 
    @Value("${master.datasource.validationQuery}")
    private String validationQuery;
 
    @Value("${master.datasource.testWhileIdle}")
    private boolean testWhileIdle;
 
    @Value("${master.datasource.testOnBorrow}")
    private boolean testOnBorrow;
 
    @Value("${master.datasource.testOnReturn}")
    private boolean testOnReturn;
 
    @Value("${master.datasource.poolPreparedStatements}")
    private boolean poolPreparedStatements;
 
    @Value("${master.datasource.maxPoolPreparedStatementPerConnectionSize}")
    private int maxPoolPreparedStatementPerConnectionSize;
 
    @Value("${master.datasource.filters}")
    private String filters;
 
    @Value("{master.datasource.connectionProperties}")
    private String connectionProperties;
 
    @Bean(name = "masterDataSource") // 声明其为Bean实例
    @Primary // 在同样的DataSource中，首先使用被标注的DataSource
    public DataSource dataSource() {
        DruidDataSource datasource = new DruidDataSource();
 
        datasource.setUrl(this.dbUrl);
        datasource.setUsername(username);
        datasource.setPassword(password);
        datasource.setDriverClassName(driverClassName);
 
        // configuration
        datasource.setInitialSize(initialSize);
        datasource.setMinIdle(minIdle);
        datasource.setMaxActive(maxActive);
        datasource.setMaxWait(maxWait);
        datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
        datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        datasource.setValidationQuery(validationQuery);
        datasource.setTestWhileIdle(testWhileIdle);
        datasource.setTestOnBorrow(testOnBorrow);
        datasource.setTestOnReturn(testOnReturn);
        datasource.setPoolPreparedStatements(poolPreparedStatements);
        datasource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);
        try {
            datasource.setFilters(filters);
        } catch (SQLException e) {
        }
        datasource.setConnectionProperties(connectionProperties);
 
        return datasource;
    }
}